rippling vs upsurge

rippling

noun
  • A motion or sound that ripples. 

adj
  • Moving in a chaotic, undulating fashion, as in a flow of water or a flag blowing in the wind. 

upsurge

noun
  • A sudden strong rise or flow. 

verb
  • to surge up, or to become stronger or greater 

How often have the words rippling and upsurge occurred in a corpus of books? (source: Google Ngram Viewer )